NoClassDefFoundError weblogic.Deployer 7.01

Question

I'm trying to use the weblogic.Deployer utility, but I am not able to get it working.
(I'm on a Win2K server and I'm pretty new to weblogic server...)
Everytime I try to run the deployer, I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/Deployer
I've tried changing my CLASSPATH, changing directories, etc. - Nothing seems to
work.
I know where the weblogic.jar file is. I've tried running deployer from the java
dir, the weblogic.jar dir - you name it!
Can anyone offer some help?

Answer 1

Yes. If you can package as an EAR, then you could do the database logic
outside of the WAR, and just redeploy the WAR within the EAR.
-- Rob
Wayne Hoit wrote:
Rob -
Thanks - I'll guess I'll have to redeploy then - it's unfortunate since I'm connected
to a database and I'll have to re-login, etc, etc.
I guess it'll still be faster than restarting the server though....
Rob Woollen <[email protected]> wrote:
Ah, now I understand, we're talking about 2 different issues.
That page is discussing deploying applications automatically in the
applications directory. Indeed, there's an issue there with Windows
file locking. However, servlet-reload-check-seconds is not used there.
servlet-reload-check-seconds is done by the web container on individual
servlet classes. It works fine on Windows.
That being said, classes in WEB-INF/lib are not handled by
servlet-reload-check-seconds, only the actual servlet implementation
class.
If you're deploying an exploded webapp, and you want to change a jar
file in WEB-INF/lib, you'll need to redeploy the webapp.
This syntax should work fine:
java weblogic.Deployer -username user -password pass -name ematrix -redeploy
-- Rob
Wayne Hoit wrote:
Rob -
This is the link that talks about windows file locking and servlets
http://e-docs.bea.com/wls/docs81/deployment/concepts.html#1007794
Are you deploying an EAR or a WebApp (WAR)?WebApp, exploded
What is the change you're making to ther webapp? ie just a servlet
class, or something in WEB-INF/{classes,lib}I'm changing a Servlet (jar file) in web-inf/lib
Rob Woollen <[email protected]> wrote:
Wayne Hoit wrote:
Rob -
Sorry to disagree, but the Weblogic 7 docs state that servlets in
exploded
apps
cannot be reloaded with the servletreloadchecksecs parameter due toa limitation
in Windows.
Tech support has confirmed this.Hmm, can you show me the docs or the response from support that confirms
this. Reloading servlets on the fly has been in since at least WLS3.x.
It works fine on Windows.
This is why I'm investigating weblogic.Deployer - to see if I can
do
it with this
utility.
I cannot just redeploy the entire App because I'm connected to a database- if
I redploy the App, I have tore-login, etc, etc.
I might just as well shut it all down and restart.
Ok, I'm not sure I understand exactly what you're trying to do yet.
Can
you answer these questions, and I can better aid you:
Are you deploying an EAR or a WebApp (WAR)?
What is the change you're making to ther webapp? ie just a servlet
class, or something in WEB-INF/{classes,lib}
-- Rob
That's another reason I'd like to use weblogic.Deployer.
Which is what my latest post was all about.
I tried weblogic.Deployer and it appeared to work, although the Servletnever
actually reloaded.
Rob Woollen <[email protected]> wrote:
Wayne Hoit wrote:
Rob -
Thanks for the help, but it turns out the CLASSPATH in my dos promptwindow wasn't
set correctly.
I can now run the Deployer, although it has caused a new problem.
I am trying to reload a Servlet on a Win2K server. I know weblogiccannot do this
automatically due to limitations on Windows.No, it can.
There's a parameter in the weblogic.xml descriptor named
servlet-reload-check-secs. By default it is 1, and it will check
to
see
if your servlet has changed every 1 second. This is very nice for
development. See
http://e-docs.bea.com/wls/docs81/webapp/weblogic_xml.html#1038823
If you're making changes in the web application (ie something in
WEB-INF/lib or WEB-INF/classes), you can ask weblogic.Deployer tojust
redeploy the webapp.
Here's an example (java weblogic.Deployer -examples in 8.1 is helpful)
Is your application just a webapp (ie not an EAR file).
If so, something like this is correct to redeploy the webapp:
java weblogic.Deployer -username username -password password -name
ematrix -redeploy
If you have an ear file and just want to redeploy an individual webapp
without touching the rest of the application, use something like
this:
Redeploy individual module in an application:
java weblogic.Deployer -adminurl url -username username -password
password -name ematrix -redeploy -targets MyWebApp@myServer
You should not have to restart the server to make application changes.
-- Rob
However, I was under the impression that the Deployer could do it.
I ran this command with these results:
C:\>java weblogic.Deployer -adminurl http://localhost:7001 -user
weblogic
-passw
ord weblogic -name ematrix -activate c:\ematrixrmi1001\distrib\ematrix/web-inf/l
ib/printLogic.jar -verbose
Operation started, waiting for notifications...
[Id: 5] preparing ematrix for myserver
[Id: 5] prepared ematrix for myserver
[Id: 5] activating ematrix for myserver
[Id: 5] activated ematrix for myserver
#TaskID Action Status Target Type ApplicationSource
5 Activate Success myserver Server ematrix
null
However, when i re-ran the Servlet, nothing has changed.
It apparently has not been reloaded.
Am I doomed to restarting the entire weblogic server any time Ichange
the Servlet?
That would continue to make devleopment a real pain...
Rob Woollen <[email protected]> wrote:
Sounds like you don't have weblogic.jar in the classpath, or you
have
the wrong version.
Can you go to a shell and show me this output:
1) echo %CLASSPATH% (or echo $CLASSPATH on UNIX)
2) java weblogic.version
3) javap weblogic.Deployer
-- Rob
Wayne Hoit wrote:
I'm trying to use the weblogic.Deployer utility, but I am not
able
to get it working.
(I'm on a Win2K server and I'm pretty new to weblogic server...)
Everytime I try to run the deployer, I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/Deployer
I've tried changing my CLASSPATH, changing directories, etc. -
Nothing
seems to
work.
I know where the weblogic.jar file is. I've tried running deployer
from the java
dir, the weblogic.jar dir - you name it!
Can anyone offer some help?